summaryrefslogtreecommitdiff
path: root/drivers/dma
AgeCommit message (Collapse)AuthorFilesLines
2012-11-06Merge branch 'arm-next' of git://git.xilinx.com/linux-xlnx into next/cleanupOlof Johansson4-8/+29
From Michal Simek: * 'arm-next' of git://git.xilinx.com/linux-xlnx: zynq: move static peripheral mappings zynq: remove use of CLKDEV_LOOKUP zynq: use pl310 device tree bindings zynq: use GIC device tree bindings + Linux 3.7-rc3
2012-11-05ARM: plat-nomadik: move DMA40 header to <linux/platform_data>Linus Walleij2-3/+2
This moves the DMA40 platform data header from <plat/ste_dma40.h> to <linux/platform_data/dma-ste-dma40.h> where is belongs. Cc: Dan Williams <djbw@fb.com> Cc: Mark Brown <broonie@opensource.wolfsonmicro.com> Cc: Ola Lilja <ola.o.lilja@stericsson.com> Cc: Herbert Xu <herbert@gondor.apana.org.au> Cc: Andreas Westin <andreas.westin@stericsson.com> Acked-by: Vinod Koul <vinod.koul@intel.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2012-10-31ARM: OMAP: Remove cpu_is_omap usage from plat-omap/dma.cTony Lindgren1-6/+0
This code will be eventually in drivers, and for the code in the drivers we don't want to have any cpu_is_omap usage. Those macros should be private to arch/arm/mach-omap1 and arch/arm/mach-omap2. To fix this, let's move the define for dma_omap2plus() to dma-omap.h, and use the existing dma_attr passed in the platform_data as the revision registers are what they are. Note that we can now also remove the relative includes introduced by the recent clean-up patches. Cc: Russell King <linux@arm.linux.org.uk> Cc: Vinod Koul <vinod.koul@intel.com> Cc: Lokesh Vutla <lokeshvutla@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2012-10-26Merge branch 'fixes' of git://git.infradead.org/users/vkoul/slave-dmaLinus Torvalds2-3/+5
Pull slave-dmaengine fixes from Vinod Koul: "Three fixes for slave dmanegine. Two are for typo omissions in sifr dmaengine driver and the last one is for the imx driver fixing a missing unlock" * 'fixes' of git://git.infradead.org/users/vkoul/slave-dma: dmaengine: sirf: fix a typo in moving running dma_desc to active queue dmaengine: sirf: fix a typo in dma_prep_interleaved dmaengine: imx-dma: fix missing unlock on error in imxdma_xfer_desc()
2012-10-25drivers/dma/dw_dmac: make driver's endianness configurableHein Tibosch2-5/+24
The dw_dmac driver was originally developed for avr32 to be used with the Synopsys DesignWare AHB DMA controller. Starting from 2.6.38, access to the device's i/o memory was done with the little-endian readl/writel functions(1) This broke the driver for the avr32 platform, because it needs big (native) endian accessors. This patch makes the endianness configurable using 'DW_DMAC_BIG_ENDIAN_IO', which will default be true for AVR32 I submitted this patch before(2) but then waited for Andy to finish other changes to the same module(3). (1) https://patchwork.kernel.org/patch/608211 (2) https://lkml.org/lkml/2012/8/26/148 (3) https://lkml.org/lkml/2012/9/21/173 Signed-off-by: Hein Tibosch <hein_tibosch@yahoo.es> Acked-by: Arnd Bergmann <arnd@arndb.de> Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Cc: Hans-Christian Egtvedt <egtvedt@samfundet.no> Cc: Ludovic Desroches <ludovic.desroches@atmel.com> Cc: Havard Skinnemoen <havard@skinnemoen.net> Cc: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-10-24dmaengine: sirf: fix a typo in moving running dma_desc to active queueBarry Song1-1/+1
list_move_tail(&schan->queued, &schan->active) makes the list_empty(schan->queued) undefined, we either should change it to: list_move_tail(schan->queued.next, &schan->active) or list_move_tail(&sdesc->node, &schan->active) Signed-off-by: Barry Song <Baohua.Song@csr.com> Cc: stable <stable@vger.kernel.org> Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
2012-10-24dmaengine: sirf: fix a typo in dma_prep_interleavedBarry Song1-1/+1
either DEV_TO_MEM or MEM_TO_DEV is supported, so change OR to AND. Signed-off-by: Barry Song <Baohua.Song@csr.com> Cc: stable <stable@vger.kernel.org> Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
2012-10-24dmaengine: imx-dma: fix missing unlock on error in imxdma_xfer_desc()Wei Yongjun1-1/+3
Add the missing unlock on the error handling path in function imxdma_xfer_desc(). Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Cc: stable <stable@vger.kernel.org> Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
2012-10-17Merge branch 'omap-for-v3.8/cleanup-headers-dma' into ↵Tony Lindgren1-1/+1
omap-for-v3.8/cleanup-headers Conflicts: drivers/crypto/omap-aes.c drivers/crypto/omap-sham.c drivers/dma/omap-dma.c
2012-10-15ARM: OMAP: Trivial driver changes to remove include plat/cpu.hTony Lindgren1-2/+7
Drivers should not use cpu_is_omap or cpu_class_is_omap macros, they should be private to the platform init code. And we'll be removing plat/cpu.h and only have a private soc.h for the arch/arm/*omap* code. This patch is intended as preparation for the core omap changes and removes the need to include plat/cpu.h from several drivers. This is needed for the ARM common zImage support. These changes are OK to do because: - omap-rng.c does not need plat/cpu.h - omap-aes.c and omap-sham.c get the proper platform_data passed to them so they don't need extra checks in the driver - omap-dma.c and omap-pcm.c can test the arch locally as omap1 and omap2 cannot be compiled together because of conflicting compiler flags Cc: Deepak Saxena <dsaxena@plexity.net> Cc: Matt Mackall <mpm@selenic.com> Cc: Herbert Xu <herbert@gondor.apana.org.au> Cc: David S. Miller <davem@davemloft.net> Cc: Venkatraman S <svenkatr@ti.com> Cc: Chris Ball <cjb@laptop.org> Cc: Vinod Koul <vinod.koul@intel.com> Cc: Dan Williams <djbw@fb.com> Acked-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Acked-by: Jarkko Nikula <jarkko.nikula@bitmer.com> Cc: Liam Girdwood <lrg@ti.com> Cc: Mark Brown <broonie@opensource.wolfsonmicro.com> Cc: linux-crypto@vger.kernel.org Cc: linux-mmc@vger.kernel.org Cc: alsa-devel@alsa-project.org Cc: linux-kernel@vger.kernel.org [tony@atomide.com: mmc changes folded in to an earlier patch] Signed-off-by: Tony Lindgren <tony@atomide.com>
2012-10-15ARM: OMAP: DMA: Move plat/dma.h to plat-omap/dma-omap.hLokesh Vutla1-1/+1
Move plat/dma.h to plat-omap/dma-omap.h as part of single zImage work Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2012-10-15dma: imx-dma: remove cpu_is_xxx by using platform_device_idShawn Guo1-6/+48
It changes the driver to use platform_device_id rather than cpu_is_xxx to determine the controller type, and updates the platform code accordingly. As the result, mach/hardware.h inclusion gets removed from the driver. Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Acked-by: Arnd Bergmann <arnd@arndb.de> Tested-by: Javier Martin <javier.martin@vista-silicon.com> Cc: Vinod Koul <vinod.koul@linux.intel.com>
2012-10-15dma: imx-dma: retrieve MEM and IRQ from resourcesShawn Guo1-15/+20
Retrieve MEM and IRQ from resources rather than directly using the value by including machine header. Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Acked-by: Sascha Hauer <s.hauer@pengutronix.de> Acked-by: Arnd Bergmann <arnd@arndb.de> Cc: Vinod Koul <vinod.koul@linux.intel.com>
2012-10-15dma: imx-dma: use devm_kzalloc and devm_request_irqShawn Guo1-39/+15
Use managed functions devm_kzalloc and devm_request_irq instead to make the error patch simpler. Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Acked-by: Sascha Hauer <s.hauer@pengutronix.de> Acked-by: Arnd Bergmann <arnd@arndb.de> Cc: Vinod Koul <vinod.koul@linux.intel.com>
2012-10-15dma: imx-sdma: remove unneeded mach/hardware.h inclusionShawn Guo1-1/+0
The inclusion of mach/hardware.h is not used in imx-sdma driver at all. Remove it. Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Acked-by: Sascha Hauer <s.hauer@pengutronix.de> Acked-by: Arnd Bergmann <arnd@arndb.de> Cc: Vinod Koul <vinod.koul@intel.com>
2012-10-15dma: ipu: rename mach/ipu.h to include/linux/dma/ipu-dma.hShawn Guo2-4/+2
The header ipu.h really belongs to dma subsystem rather than imx platform. Rename it to ipu-dma.h and put it into include/linux/dma/. Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Acked-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Acked-by: Sascha Hauer <s.hauer@pengutronix.de> Acked-by: Arnd Bergmann <arnd@arndb.de> Cc: Vinod Koul <vinod.koul@intel.com> Cc: Florian Tobias Schandinat <FlorianSchandinat@gmx.de> Cc: linux-media@vger.kernel.org Cc: linux-fbdev@vger.kernel.org
2012-10-10Merge branch 'next' of git://git.infradead.org/users/vkoul/slave-dmaLinus Torvalds15-199/+1891
Pull slave-dmaengine updates from Vinod Koul: "This time we have Andy updates on dw_dmac which is attempting to make this IP block available as PCI and platform device though not fully complete this time. We also have TI EDMA moving the dma driver to use dmaengine APIs, also have a new driver for mmp-tdma, along with bunch of small updates. Now for your excitement the merge is little unusual here, while merging the auto merge on linux-next picks wrong choice for pl330 (drivers/dma/pl330.c) and this causes build failure. The correct resolution is in linux-next. (DMA: PL330: Fix build error) I didn't back merge your tree this time as you are better than me so no point in doing that for me :)" Fixed the pl330 conflict as in linux-next, along with trivial header file conflicts due to changed includes. * 'next' of git://git.infradead.org/users/vkoul/slave-dma: (29 commits) dma: tegra: fix interrupt name issue with apb dma. dw_dmac: fix a regression in dwc_prep_dma_memcpy dw_dmac: introduce software emulation of LLP transfers dw_dmac: autoconfigure data_width or get it via platform data dw_dmac: autoconfigure block_size or use platform data dw_dmac: get number of channels from hardware if possible dw_dmac: fill optional encoded parameters in register structure dw_dmac: mark dwc_dump_chan_regs as inline DMA: PL330: return ENOMEM instead of 0 from pl330_alloc_chan_resources DMA: PL330: Remove redundant runtime_suspend/resume functions DMA: PL330: Remove controller clock enable/disable dmaengine: use kmem_cache_zalloc instead of kmem_cache_alloc/memset DMA: PL330: Set the capability of pdm0 and pdm1 as DMA_PRIVATE ARM: EXYNOS: Set the capability of pdm0 and pdm1 as DMA_PRIVATE dma: tegra: use list_move_tail instead of list_del/list_add_tail mxs/dma: Enlarge the CCW descriptor area to 4 pages dw_dmac: utilize slave_id to pass request line dmaengine: mmp_tdma: add dt support dmaengine: mmp-pdma support spi: davici - make davinci select edma ...
2012-10-09Merge tag 'sound-3.7' of ↵Linus Torvalds12-20/+51
git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound Pull sound updates from Takashi Iwai: "This contains pretty many small commits covering fairly large range of files in sound/ directory. Partly because of additional API support and partly because of constantly developed ASoC and ARM stuff. Some highlights: - Introduced the helper function and documentation for exposing the channel map via control API, as discussed in Plumbers; most of PCI drivers are covered, will follow more drivers later - Most of drivers have been replaced with the new PM callbacks (if the bus is supported) - HD-audio controller got the support of runtime PM and the support of D3 clock-stop. Also changing the power_save option in sysfs kicks off immediately to enable / disable the power-save mode. - Another significant code change in HD-audio is the rewrite of firmware loading code. Other than that, most of changes in HD-audio are continued cleanups and standardization for the generic auto parser and bug fixes (HBR, device-specific fixups), in addition to the support of channel-map API. - Addition of ASoC bindings for the compressed API, used by the mid-x86 drivers. - Lots of cleanups and API refreshes for ASoC codec drivers and DaVinci. - Conversion of OMAP to dmaengine. - New machine driver for Wolfson Microelectronics Bells. - New CODEC driver for Wolfson Microelectronics WM0010. - Enhancements to the ux500 and wm2000 drivers - A new driver for DA9055 and the support for regulator bypass mode." Fix up various arm soc header file reorg conflicts. * tag 'sound-3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (339 commits) ALSA: hda - Add new codec ALC283 ALC290 support ALSA: hda - avoid unneccesary indices on "Headphone Jack" controls ALSA: hda - fix indices on boost volume on Conexant ALSA: aloop - add locking to timer access ALSA: hda - Fix hang caused by race during suspend. sound: Remove unnecessary semicolon ALSA: hda/realtek - Fix detection of ALC271X codec ALSA: hda - Add inverted internal mic quirk for Lenovo IdeaPad U310 ALSA: hda - make Realtek/Sigmatel/Conexant use the generic unsol event ALSA: hda - make a generic unsol event handler ASoC: codecs: Add DA9055 codec driver ASoC: eukrea-tlv320: Convert it to platform driver ALSA: ASoC: add DT bindings for CS4271 ASoC: wm_hubs: Ensure volume updates are handled during class W startup ASoC: wm5110: Adding missing volume update bits ASoC: wm5110: Add OUT3R support ASoC: wm5110: Add AEC loopback support ASoC: wm5110: Rename EPOUT to HPOUT3 ASoC: arizona: Add more clock rates ASoC: arizona: Add more DSP options for mixer input muxes ...
2012-10-06drivers/dma/dmaengine.c: lower the priority of 'failed to get' dma channel ↵Fabio Estevam1-1/+1
message Do the same as commit a03a202e95fd ("dmaengine: failure to get a specific DMA channel is not critical") to get rid of the following messages during kernel boot: dmaengine_get: failed to get dma1chan0: (-22) dmaengine_get: failed to get dma1chan1: (-22) dmaengine_get: failed to get dma1chan2: (-22) dmaengine_get: failed to get dma1chan3: (-22) .. Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Cc: Vinod Koul <vinod.koul@intel.com> Cc: Dan Williams <dan.j.williams@intel.com> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-10-04dma: tegra: fix interrupt name issue with apb dma.Laxman Dewangan1-3/+3
When watching the interrupts through /proc/interrupts, the name of the interrupts are blank or garbage. The reason is the pointer passed for devname during irq registration is stack and so it get changed after dma registration completes. Allocate the pointer as part of dma channel and pass this pointer as the devname for irq registration to avoid change of name. Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com> Reported-by: Stephen Warren <swarren@nvidia.com> Acked-by: Stephen Warren <swarren@nvidia.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
2012-10-02dw_dmac: fix a regression in dwc_prep_dma_memcpyAndy Shevchenko1-4/+5
Sometimes memory-to-memory test is failed, that's why we need to choose minimum data portion between source and destination limits together. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
2012-10-01Merge tag 'multiplatform' of ↵Linus Torvalds6-7/+7
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM soc multiplatform enablement from Olof Johansson: "This is a pretty significant branch. It's the introduction of the first multiplatform support on ARM, and with this (and the later branch) merged, it is now possible to build one kernel that contains support for highbank, vexpress, mvebu, socfpga, and picoxcell. More platforms will be convered over in the next few releases. Two critical last things had to be done for this to be practical and possible: * Today each platform has its own include directory under mach-<mach>/include/mach/*, and traditionally that is where a lot of driver/platform shared definitions have gone, such as platform data structures. They now need to move out to a common location instead, and this branch moves a large number of those out to include/linux/platform_data. * Each platform used to list the device trees to compile for its boards in mach-<mach>/Makefile.boot. Both of the above changes will mean that there are some merge conflicts to come (and some to resolve here). It's a one-time move and once it settles in, we should be good for quite a while. Sorry for the overhead." Fix conflicts as per Olof. * tag 'multiplatform' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (51 commits) ARM: add v7 multi-platform defconfig ARM: msm: Move core.h contents into common.h ARM: highbank: call highbank_pm_init from .init_machine ARM: dtb: move all dtb targets to common Makefile ARM: spear: move platform_data definitions ARM: samsung: move platform_data definitions ARM: orion: move platform_data definitions ARM: vexpress: convert to multi-platform ARM: initial multiplatform support ARM: mvebu: move armada-370-xp.h in mach dir ARM: vexpress: remove dependency on mach/* headers ARM: picoxcell: remove dependency on mach/* headers ARM: move all dtb targets out of Makefile.boot ARM: picoxcell: move debug macros to include/debug ARM: socfpga: move debug macros to include/debug ARM: mvebu: move debug macros to include/debug ARM: vexpress: move debug macros to include/debug ARM: highbank: move debug macros to include/debug ARM: move debug macros to common location ARM: make mach/gpio.h headers optional ...
2012-10-01Merge tag 'cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-socLinus Torvalds1-0/+2
Pull ARM soc general cleanups from Olof Johansson: "This is a large branch that contains a handful of different cleanups: - Fixing up the I/O space remapping on PCI on ARM. This is a series from Rob Herring that restructures how all pci devices allocate I/O space, and it's part of the work to allow multiplatform kernels. - A number of cleanup series for OMAP, moving and removing some headers, sparse irq rework and in general preparation for multiplatform. - Final removal of all non-DT boards for Tegra, it is now device-tree-only! - Removal of a stale platform, nxp4008. It's an old mobile chipset that is no longer in use, and was very likely never really used with a mainline kernel. We have not been able to find anyone interested in keeping it around in the kernel. - Removal of the legacy dmaengine driver on tegra + A handful of other things that I haven't described above." Fix up some conflicts with the staging tree (and because nxp4008 was removed) * tag 'cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (184 commits) ARM: OMAP2+: serial: Change MAX_HSUART_PORTS to 6 ARM: OMAP4: twl-common: Support for additional devices on i2c1 bus ARM: mmp: using for_each_set_bit to simplify the code ARM: tegra: harmony: fix ldo7 regulator-name ARM: OMAP2+: Make omap4-keypad.h local ARM: OMAP2+: Make l4_3xxx.h local ARM: OMAP2+: Make l4_2xxx.h local ARM: OMAP2+: Make l3_3xxx.h local ARM: OMAP2+: Make l3_2xxx.h local ARM: OMAP1: Move irda.h from plat to mach ARM: OMAP2+: Make hdq1w.h local ARM: OMAP2+: Make gpmc-smsc911x.h local ARM: OMAP2+: Make gpmc-smc91x.h local ARM: OMAP1: Move flash.h from plat to mach ARM: OMAP2+: Make debug-devices.h local ARM: OMAP1: Move board-voiceblue.h from plat to mach ARM: OMAP1: Move board-sx1.h from plat to mach ARM: OMAP2+: Make omap-wakeupgen.h local ARM: OMAP2+: Make omap-secure.h local ARM: OMAP2+: Make ctrl_module_wkup_44xx.h local ...
2012-10-01Merge tag 'fixes-non-critical' of ↵Linus Torvalds1-4/+4
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull non-critical ARM soc bug fixes from Olof Johansson: "These were submitted as bug fixes before v3.6 but not considered important enough to be included in it. Some of them cross over to cleanup territory as well, and aren't strictly bugfixes." * tag 'fixes-non-critical' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (48 commits) ARM: nomadik: remove NAND_NO_READRDY use ARM: pxa: fix return value check in pxa2xx_drv_pcmcia_probe() ARM: SAMSUNG: Add missing variable declaration in s3c64xx_spi1_set_platdata() ARM: S3C24XX: removes unnecessary semicolon ARM: S3C24xx: delete double assignment ARM: EXYNOS: fix address for EXYNOS4 MDMA1 ARM: EXYNOS: fixed SYSMMU setup definition to mate parameter name ARM: ep93xx: Move ts72xx.h out of include/mach ARM: ep93xx: use __iomem pointers for MMIO ARM: msm: Fix early debug uart mapping on some memory configs ARM: msm: io: Change the default static iomappings to be shared ARM: msm: io: Remove 7x30 iomap region from 7x00 ARM: msm: Remove call to missing FPGA init on 8660 ARM: OMAP4: wakeupgen: remove duplicate AUXCOREBOOT* read/write ARM: OMAP4: wakeupgen: Fix the typo in AUXCOREBOOT register save dma: tegra: make data used as *of_device_id.data const can: mpc5xxx_can: make data used as *of_device_id.data const macintosh/mediabay: make data used as *of_device_id.data const i2c/mpc: make data used as *of_device_id.data const mfd/da9052: make i2c_device_id array const ...
2012-10-01Merge branch 'for-linus' of ↵Linus Torvalds10-19/+15
git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial Pull the trivial tree from Jiri Kosina: "Tiny usual fixes all over the place" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (34 commits) doc: fix old config name of kprobetrace fs/fs-writeback.c: cleanup riteback_sb_inodes kerneldoc btrfs: fix the commment for the action flags in delayed-ref.h btrfs: fix trivial typo for the comment of BTRFS_FREE_INO_OBJECTID vfs: fix kerneldoc for generic_fh_to_parent() treewide: fix comment/printk/variable typos ipr: fix small coding style issues doc: fix broken utf8 encoding nfs: comment fix platform/x86: fix asus_laptop.wled_type module parameter mfd: printk/comment fixes doc: getdelays.c: remember to close() socket on error in create_nl_socket() doc: aliasing-test: close fd on write error mmc: fix comment typos dma: fix comments spi: fix comment/printk typos in spi Coccinelle: fix typo in memdup_user.cocci tmiofb: missing NULL pointer checks tools: perf: Fix typo in tools/perf tools/testing: fix comment / output typos ...
2012-09-27dw_dmac: introduce software emulation of LLP transfersAndy Shevchenko2-4/+101
Some controllers have the reduced functionality where the LLP multi block transfers are not supported. This patch introduces a support of such controllers. In case of memory copy or scatter-gather lists it emulates LLP transfers via bunch of the regular single block ones. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
2012-09-27dw_dmac: autoconfigure data_width or get it via platform dataAndy Shevchenko2-6/+47
Not all of the controllers support the 64 bit data width. Make it configurable via platform data. The driver will try to get a value from the component parameters, otherwise it will use the platform data. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
2012-09-27dw_dmac: autoconfigure block_size or use platform dataAndy Shevchenko2-16/+24
The maximum block size is a configurable parameter for the chip. So, driver will try to get it from the encoded component parameters. Otherwise it will come from the platform data. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
2012-09-27dw_dmac: get number of channels from hardware if possibleAndy Shevchenko1-10/+23
In case the controller has the encoded parameters feature enabled the driver will use it to get the number of channels. In the future it will be used for the other important parameters as well. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
2012-09-27dw_dmac: fill optional encoded parameters in register structureAndy Shevchenko1-0/+30
There is a block of the registers that are optional. However, if enabled they contain useful information about the controller hardware configuration. We will use this piece of data to autoconfigure the driver. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
2012-09-27dw_dmac: mark dwc_dump_chan_regs as inlineAndy Shevchenko1-1/+1
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
2012-09-22dmaengine: omap-dma: Add support to suppress interrupts in cyclic modePeter Ujfalusi1-2/+5
When requested (DMA_PREP_INTERRUPT is cleared in flags) disable all DMA interrupts for the channel. In this mode user space does not expect periodic reports from kernel about the progress of the audio stream. PulseAudio for example support this type of mode. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Acked-by: Vinod Koul <vinod.koul@linux.intel.com> Tested-by: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-09-22dmaengine: Pass flags via device_prep_dma_cyclic() callbackPeter Ujfalusi12-12/+17
Change the parameter list of device_prep_dma_cyclic() so the DMA drivers can receive the flags coming from clients. This feature can be used during audio operation to disable all audio related interrupts when the DMA_PREP_INTERRUPT is cleared from the flags. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com> Acked-by: Shawn Guo <shawn.guo@linaro.org> Acked-by: Vinod Koul <vinod.koul@linux.intel.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-09-22dmaengine: omap: Add support for pause/resume in cyclic dma modePeter Ujfalusi1-5/+25
The audio stack used omap_stop_dma/omap_start_dma to pause/resume the DMA. This method has been used for years on OMAP based products. We only allow pause/resume when the DMA has been configured in cyclic mode which is used by the audio stack. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Acked-by: Vinod Koul <vinod.koul@linux.intel.com> Tested-by: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-09-22dmaengine: omap: Support for element mode in cyclic DMAPeter Ujfalusi1-1/+4
When src_maxburst/dst_maxburst is set to 0 by the users of cyclic DMA (mostly audio) indicates that we should configure the omap DMA to element sync mode instead of packet mode. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Acked-by: Vinod Koul <vinod.koul@linux.intel.com> Tested-by: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-09-22Merge branch 'multiplatform/platform-data' into next/multiplatformOlof Johansson6-7/+7
* multiplatform/platform-data: ARM: spear: move platform_data definitions ARM: samsung: move platform_data definitions ARM: orion: move platform_data definitions ARM: nomadik: move platform_data definitions ARM: w90x900: move platform_data definitions ARM: vt8500: move platform_data definitions ARM: tegra: move sdhci platform_data definition ARM: sa1100: move platform_data definitions ARM: pxa: move platform_data definitions ARM: netx: move platform_data definitions ARM: msm: move platform_data definitions ARM: imx: move platform_data definitions ARM: ep93xx: move platform_data definitions ARM: davinci: move platform_data definitions ARM: at91: move platform_data definitions Conflicts due to removed files: arch/arm/mach-tegra/board-harmony.c arch/arm/mach-tegra/board-trimslice.c Conflicts due to code removal: arch/arm/mach-tegra/board-paz00.c Context conflicts in: drivers/mmc/host/sdhci-tegra.c drivers/net/irda/pxaficp_ir.c Signed-off-by: Olof Johansson <olof@lixom.net>
2012-09-19ARM: orion: move platform_data definitionsArnd Bergmann1-1/+1
Platform data for device drivers should be defined in include/linux/platform_data/*.h, not in the architecture and platform specific directories. This moves such data out of the orion include directories Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: Nicolas Pitre <nico@linaro.org> Acked-by: Mauro Carvalho Chehab <mchehab@redhat.com> Cc: Jason Cooper <jason@lakedaemon.net> Cc: Andrew Lunn <andrew@lunn.ch> Cc: Vinod Koul <vinod.koul@intel.com> Cc: Dan Williams <djbw@fb.com> Cc: Bryan Wu <bryan.wu@canonical.com> Cc: Richard Purdie <rpurdie@rpsys.net> Cc: Chris Ball <cjb@laptop.org> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Alan Stern <stern@rowland.harvard.edu> Cc: Liam Girdwood <lrg@ti.com> Cc: Jaroslav Kysela <perex@perex.cz> Cc: Takashi Iwai <tiwai@suse.de>
2012-09-18DMA: PL330: Check the pointer returned by kzallocSachin Kamat1-0/+5
kzalloc could return NULL. Hence add a check to avoid NULL pointer dereference. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Acked-by: Jassi Brar <jassisinghbrar@gmail.com> Cc: Stable <stable@vger.kernel.org> Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
2012-09-18DMA: PL330: Fix potential NULL pointer dereference in pl330_submit_req()Sachin Kamat1-7/+9
'r->cfg' is being checked for NULL. However, it is dereferenced in the previous statements. Thus moving those statements within the check. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Acked-by: Jassi Brar <jassisinghbrar@gmail.com> Cc: Stable <stable@vger.kernel.org> Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
2012-09-18DMA: PL330: return ENOMEM instead of 0 from pl330_alloc_chan_resourcesInderpal Singh1-1/+1
Since 0 is not considered as error at dmaengine level, return ENOMEM from pl330_alloc_chan_resources in case of failure. Signed-off-by: Inderpal Singh <inderpal.singh@linaro.org> Acked-by: Jassi Brar <jassisinghbrar@gmail.com> Acked-by: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
2012-09-18DMA: PL330: Remove redundant runtime_suspend/resume functionsInderpal Singh1-56/+5
The driver's runtime_suspend/resume functions just disable/enable the clock which is already being managed at AMBA bus level runtime_suspend/resume functions. Hence, remove the driver's runtime_suspend/resume functions. Signed-off-by: Inderpal Singh <inderpal.singh@linaro.org> Tested-by: Chander Kashyap <chander.kashyap@linaro.org> Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
2012-09-18DMA: PL330: Remove controller clock enable/disableInderpal Singh1-12/+0
The controller clock is being enabled/disabled in AMBA bus infrastructre in probe/remove functions. Hence, its not required at driver level probe/remove. Signed-off-by: Inderpal Singh <inderpal.singh@linaro.org> Tested-by: Chander Kashyap <chander.kashyap@linaro.org> Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
2012-09-18dmaengine: use kmem_cache_zalloc instead of kmem_cache_alloc/memsetWei Yongjun1-2/+1
Using kmem_cache_zalloc() instead of kmem_cache_alloc() and memset(). spatch with a semantic match is used to found this problem. (http://coccinelle.lip6.fr/) Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
2012-09-14ARM: pxa: move platform_data definitionsArnd Bergmann1-1/+1
Platform data for device drivers should be defined in include/linux/platform_data/*.h, not in the architecture and platform specific directories. This moves such data out of the pxa include directories Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: Nicolas Pitre <nico@linaro.org> Acked-by: Mauro Carvalho Chehab <mchehab@redhat.com> Acked-by: Igor Grinberg <grinberg@compulab.co.il> Acked-by: Jeff Garzik <jgarzik@redhat.com> Acked-by: Marek Vasut <marex@denx.de> Acked-by: Robert Jarzmik <robert.jarzmik@free.fr> Acked-by: Paul Parsons <lost.distance@yahoo.com> Acked-by: Vinod Koul <vinod.koul@linux.intel.com> Acked-By: Stefan Schmidt <stefan@openezx.org> Cc: Eric Miao <eric.y.miao@gmail.com> Cc: Haojian Zhuang <haojian.zhuang@gmail.com> Cc: Daniel Ribeiro <drwyrm@gmail.com> Cc: Harald Welte <laforge@openezx.org> Cc: Philipp Zabel <philipp.zabel@gmail.com> Cc: Tomas Cech <sleep_walker@suse.cz> Cc: Sergey Lapin <slapin@ossfans.org> Cc: Jonathan Cameron <jic23@cam.ac.uk> Cc: Dan Williams <djbw@fb.com> Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com> Cc: Chris Ball <cjb@laptop.org> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Samuel Ortiz <samuel@sortiz.org> Cc: Alan Stern <stern@rowland.harvard.edu> Cc: Florian Tobias Schandinat <FlorianSchandinat@gmx.de> Cc: Liam Girdwood <lrg@ti.com> Cc: Jaroslav Kysela <perex@perex.cz> Cc: Takashi Iwai <tiwai@suse.de> Cc: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Cc: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Cc: openezx-devel@lists.openezx.org
2012-09-14ARM: imx: move platform_data definitionsArnd Bergmann2-3/+3
Platform data for device drivers should be defined in include/linux/platform_data/*.h, not in the architecture and platform specific directories. This moves such data out of the imx include directories Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: Nicolas Pitre <nico@linaro.org> Acked-by: Mauro Carvalho Chehab <mchehab@redhat.com> Acked-by: Sascha Hauer <kernel@pengutronix.de> Acked-by: Vinod Koul <vinod.koul@linux.intel.com> Cc: Russell King <linux@arm.linux.org.uk> Cc: Dan Williams <djbw@fb.com> Cc: "Ben Dooks (embedded platforms)" <ben-linux@fluff.org> Cc: "Wolfram Sang (embedded platforms)" <w.sang@pengutronix.de> Cc: Chris Ball <cjb@laptop.org> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Grant Likely <grant.likely@secretlab.ca> Cc: Alan Cox <alan@linux.intel.com> Cc: Felipe Balbi <balbi@ti.com> Cc: Alan Stern <stern@rowland.harvard.edu> Cc: Florian Tobias Schandinat <FlorianSchandinat@gmx.de> Cc: Liam Girdwood <lrg@ti.com> Cc: Javier Martin <javier.martin@vista-silicon.com> Cc: Shawn Guo <shawn.guo@linaro.org> Cc: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
2012-09-14ARM: ep93xx: move platform_data definitionsArnd Bergmann1-1/+1
Platform data for device drivers should be defined in include/linux/platform_data/*.h, not in the architecture and platform specific directories. This moves such data out of the ep93xx include directories Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: Nicolas Pitre <nico@linaro.org> Acked-by: Hartley Sweeten <hsweeten@visionengravers.com> Acked-by: Ryan Mallon <rmallon@gmail.com> Acked-by: Vinod Koul <vinod.koul@linux.intel.com> Cc: Grant Likely <grant.likely@secretlab.ca> Cc: Jeff Garzik <jgarzik@pobox.com> Cc: Dan Williams <djbw@fb.com> Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com> Cc: Florian Tobias Schandinat <FlorianSchandinat@gmx.de> Cc: Liam Girdwood <lrg@ti.com> Cc: Jaroslav Kysela <perex@perex.cz> Cc: Takashi Iwai <tiwai@suse.de> Cc: Mika Westerberg <mika.westerberg@iki.fi> Cc: Axel Lin <axel.lin@gmail.com>
2012-09-14ARM: at91: move platform_data definitionsArnd Bergmann1-1/+1
Platform data for device drivers should be defined in include/linux/platform_data/*.h, not in the architecture and platform specific directories. This moves such data out of the at91 include directories Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: Nicolas Pitre <nico@linaro.org> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com> Acked-by: Vinod Koul <vinod.koul@linux.intel.com> Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com> Cc: Dan Williams <djbw@fb.com>
2012-09-14DMA: PL330: Set the capability of pdm0 and pdm1 as DMA_PRIVATETushar Behera1-0/+1
DMA clients pdma0 and pdma1 are internal to the SoC and are used only by dedicated peripherals. Since they cannot be used for generic purpose, their capability should be set as DMA_PRIVATE. CC: Vinod Koul <vinod.koul@intel.com> Signed-off-by: Tushar Behera <tushar.behera@linaro.org> Acked-by: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
2012-09-14dma: tegra: use list_move_tail instead of list_del/list_add_tailWei Yongjun1-4/+2
Using list_move_tail() instead of list_del() + list_add_tail(). spatch with a semantic match is used to found this problem. (http://coccinelle.lip6.fr/) Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Acked-by: Laxman Dewangan <ldewangan@nvidia.com> Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
2012-09-14mxs/dma: Enlarge the CCW descriptor area to 4 pagesMarek Vasut1-6/+8
In case of a large SPI flash, the amount of DMA descriptors available to the DMA driver is not large enough anymore. For example 8MB SPI flash now needs 129 descriptors to be transfered in one long read. There are currently 53 descriptors available in one PAGE_SIZE-big block. Enlarge the allocated descriptor area to four PAGE_SIZE blocks to fulfill such requirements. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Dan Williams <djbw@fb.com> Cc: Fabio Estevam <fabio.estevam@freescale.com> Cc: Shawn Guo <shawn.guo@linaro.org> Acked-by: Shawn Guo <shawn.guo@linaro.org> Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>